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-rw-r--r--test/lit/passes/precompute-strings.wast29
1 files changed, 29 insertions, 0 deletions
diff --git a/test/lit/passes/precompute-strings.wast b/test/lit/passes/precompute-strings.wast
index aa138b289..f70430648 100644
--- a/test/lit/passes/precompute-strings.wast
+++ b/test/lit/passes/precompute-strings.wast
@@ -129,4 +129,33 @@
(i32.const 0)
)
)
+
+ ;; CHECK: (func $slice (type $1) (result (ref string))
+ ;; CHECK-NEXT: (string.const "def")
+ ;; CHECK-NEXT: )
+ (func $slice (export "slice") (result (ref string))
+ ;; Slicing [3:6] here should definitely output "def".
+ (stringview_wtf16.slice
+ (string.const "abcdefgh")
+ (i32.const 3)
+ (i32.const 6)
+ )
+ )
+
+ ;; CHECK: (func $slice-bad (type $1) (result (ref string))
+ ;; CHECK-NEXT: (stringview_wtf16.slice
+ ;; CHECK-NEXT: (string.const "abcd\c2\a3fgh")
+ ;; CHECK-NEXT: (i32.const 3)
+ ;; CHECK-NEXT: (i32.const 6)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $slice-bad (export "slice-bad") (result (ref string))
+ ;; This slice contains non-ascii, so we do not optimize.
+ (stringview_wtf16.slice
+ ;; abcd£fgh
+ (string.const "abcd\C2\A3fgh")
+ (i32.const 3)
+ (i32.const 6)
+ )
+ )
)